Thank you for viewing. This is a triple brush made with Yamauma (mountain horse) hair. Yamauma refers to the hair of the water deer from Southeast Asia and India. Due to the Washington Convention, import restrictions are in place, making this a very rare brush. This brush was made by a brush artisan a long time ago. It was intended for sale in retail stores, so there are no engravings of product names, etc. The bristles are hard, resulting in a rough, blurred expression. This is a very expensive and rare brush. We hope that those who will use it will consider purchasing it. Although unused, it has been stored for a long time, so we have listed it as "near new." Please forgive any oversights. Size: Bristle diameter: 6 mm Bristle length: 30 mm Shaft length: 240 mm Please allow for slight variations. We are also listing a wool brush, so please take a look at that as well. #Rare Yamauma Brush #Japanese Painting #Ink Wash Painting #Washington Convention